"The Case of Becoming a Greedy Younger Sister After Reincarnation ~ The Greedy Younger Sister's Trading Company President"

Mary is 10 years old, the second daughter of Count Rosen's family. One day, she is condemned by the Third Prince, her older sister Olivia's fiancé, as a greedy younger sister, and is banished to a nearly bankrupt stagecoach trading company as its company director. The stagecoach trading company that Olivia had founded was on the brink of bankruptcy—it was all a scheme to make it seem as though Mary had caused the bankruptcy. Mary is a reincarnator, but she doesn't have any particular special skills. She decided to act as a greedy younger sister. In time, contrary to her intentions, the company recovers. The servants become motivated. The creditors provide additional financing, but... The prince and her sister plot to take back the company.